Question

where can you find the vehicles maintenance requirements? a) in the owners manual. b) in the pc/ed. c) placard in the door jamb. d) all of the above.

Explanation:

The owner's manual typically contains vehicle - maintenance requirements. The PC/ED (if applicable) may also have relevant information. A placard in the door jamb can sometimes list maintenance - related details like tire pressure which is part of maintenance. So all options can potentially have maintenance requirements.

Answer:

D. All of the above